Rolling-mill



V. E. EDWARDS.

ROLLING MILL.

APPLICATION FILED NOV. 9. 1916.

1,314,859. Put-nt0d$vpt 2, 1919.

. I 2 $HEETSSHEET 1.

N Elli-E Inveniov Vz'ofovE Fa /1a V. E. EDWARDS.

ROLLING MILL.

APPLICATION FILED NOV. 9. I916.

Patontcdfivpf. 2, 1919.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

VICTOR E. EDWARDS, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO MORGAN CONSTRUCTION COMPANY, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

ROLLING-MILL.

Specification of Letters Patent.

Patented Sept. 2, 1919.

Original application filed, July 31, 1915, Serial No. 43,047. Divided and this application filed November 9,

1916. Serial No. 130,495.

To all whom it may concern Be it known that I, VICTOR E. EDWARDS, a citizen of the United States, residing at Worcester, in the county of Worcester and Commonwealth of Massachusetts, have intion Serial No. 43,047, filed by me July 31,

1915, for a rolling mill.

The present invention relates to a rolling mill, designed for the continuous reduction of metal rods or bars, and has particular reference to the provision of novel and improved apparatus for the production of bars of accurate circular cross section, known as rounds, according to the method set forth and described in my Letters Patent of the United States, No. 1,193,001, granted August 1, 1916.

The arrangement and disposition of instrumentalities found necessary for the suc cessful carrying out of said method, together with the various refinements of practice introduced for the above purpose, are fully set forth in the following description of my invention, reference being had to the accompanying drawings, in which- Figure 1 is a lan view of the apparatus embodying the invention.

Fig. 2 is a view of the same in side elevation.

Fig. 3 is a view of the same in end elevation, from the right hand end of Fig. 1.

Fig. 4 is an enlarged fragmentary sectional view, taken on line 4-4, Fig. 1.

Similar reference characters refer to similar parts in the different figures.

As fully set forth in the aforesaid Letters Patent covering my improved method for the production of accurate rounds, the continuous production of a guide round, having a cross-sectional area slightly in excess of the cross-sectional area of the desired round, is first contemplated; the further continuous reduction of said oversize round, under conditions which minimize the opportunity for error to arise by reason of the successive changes in the shape of the material during said reduction, forms the sub]ect matter of the aforesaid method.

In the accompanying drawings, I have indlcated dlagrammaticall at 1, a stand of rolls representing the nishing end of a guide mill designed for the continuous production of a bar or rod having a slightly greater cross-sectional area than the bar which it is desired eventually to produce. In advance of the rolls 1, is locateda stand or housing 2, providing sets of rolls designed for the final reduction of the material accord ng to my improved method, the novel details of said stand of rolls 2 bein fully set forth and described in my copen ing companion application, Serial No. 413,132, filed August 2, 1915.

In the drawings of the present applicat1on, the said stand 2 is shown as elevated above the level of the stand 1, merely for purposes of construction, in connection with an elevated cooling bed, not shown; it-is obvious that the two stands may be otherwise arranged.

Between the stands 1 and 2 a framework 3 supports an elongated open trough 4 preferably made in sections, as shown, and providing a shallow channel havin tudinal axis inclined to coinci e approximately with a line connecting the pass of stand 1 with the first pass of stand 2. The rear side of the trough 4 provides an upstanding vertical wall 5 which effectually restrains movement of the rod out of the trough in the direction of said wall. The front side of the trough, however, is only slightly raised above the floor of the trough, by a wall 6 which rovides a downwardly and forwardly inclined lip or extension 7 throughout the length of the trough. An inclined plate 8, preferably made in sections, and forming a continuation of the lip or extension 7, extends downwardly to a horizon-* its longi- An inclined section of the shelf 9 extends from the forward end of the latter and slopes f down gradually to the floor of the mill.

As shown in'Fig. 1, the trough 4 assumes a slight outward bulge, or deviation from the straight line joining the passes of the two stands of rolls, this convexity of the trough'f being provided in order to assist the initial 1 movement of the metal over the low Wall 6, and onto the plate 8, in the event of an over feed of the rod b the rolls of stand 1.

At its forwar end the inclined plate '8' supports a curved guide 11, of substantially channel formation, the rear or convex side of which serves to redirect the metal which' constitutes such an overfeed, toward the first pass of stand 2. The guide 11 is carried across the forward lower corner of inclined plate 8, and has a; straight continuation 12, rising from the inner edge of the inclinedsection 10 and from the floor of the mill. Rising from the outer edges of shelf 9 and inclined section 10 and from the floor of the. mill are the vertical walls 13 and 14 parallel with the wall 12, which serve to confine the 100 formed by the overfed metal.

etween the forward end of trough l and the stand 2, the framework of the mill supports a snap shear 15, of the general type shown in United States Letters Patent to; Thomas M; Jewell, No. 966,557,;August 9, 1910. The supporting framework of the shear 15 provides a flaring mouth for the. reception of the rod, one side 16 of which is I in alinement with the rear wall 5 of trough 4, while the bther side 17 forms a continuation of the guide 11, tofacilitate the passage through the shear, of the metal forming the overfeed" loop. As fully set forth in' the specification of the aforesaid patent to Jewell, the operationof said shear is effected by the manipulation of a lever 18 to swing the blades of the shear into contact with the advancing rod. When the said blades have once engaged the rod, the movement of the roditself serves to draw the cutting edges to-' gether, efl'ecting acomplete severance of the rod. Upon emerging from the); passes of stand 2, the rod lsreceived witliln a. oonveying trough 19, the sides and bot- Q tom of which provide a lurality of recesses 20, as shown in Fig.- 4. he trough 19 leads therod through a second snap shear 21,; which is a duplicate, in operation, of the. shear 15. Emerging from the shear 21 thej finished rod passes onto a cooling bed, not shown, of ordinary construction.

- t will be understood that the oversize 1:...

in its passage from the final stand of rolls 1 of the guide mill to the passes of stand 2, will be supported in the trough 4, until the overfeed of the metal by the rolls 1 causes it v to leave the trough'and to form a loop upon I the plate 8 and shelf 9. The contour of such I a loop is represented, for example, by the broken km 22, Fig. 1, or by the broken line 23, it being clear that the size of the same is determined by the amount of overfeed imparted by the rolls 1. The walls 12, 13and 14 prevent the spreadi of the loop onto the floor of the mill, whi e the guide 11 controls the formation of the loop and insures the delivery of the metal therein to the rolls of stand 2, in a direction approximately coinciding with the axes of the passes of sad rolls.

In carryin out the method of the aforesaid Letters atent No. 1,193,001, not only is the control of the free overfeed loop in the manner above described most essential, but

it is a, requisite to the accurate reduction of.

properly thereon. The shear 15 is utilized advantageously to sever a short sample from the rear end of a rod so that the product of i the guide mill can be tested for accuracy.

In this manner it can be determined whether or not the passes of the guide mill are suitably adjusted to give the desired cross-sectional shape, capable of being successfully and accurately reduced by the passes of stand 2, before any subsequent rods are run through the mill.

In the same way, the snap shear 21 is operable to sever a sample from the rear end of. a 'rod emirging -from the passes of stand 2,

in ordert ascertain the accurac of the operation ifrformed by the rolls of said stand, before t e succeeding rod is run through said rolls. The recesses 20 ofthe trough 19 enable the sample to be seized with tohgs and withdrawn, for the purpose of testing the *itiprcuracy of the same with calipers, orthe I claim:

'1. v In a rollin mill, the combination with a stand of rolls aving a pass for the reduction of metal, of two'shearing mechanisms,"

one in front of and the second behind said stand of rolls, with both shearingmechae nismsin" alinement with the pass in said standof rolls whereby a sample may be severed from a rod. both before and after; its

passage through saidystand of rolls to the accuracy of its cross section previous to the advancement of succeeding rods through the mill. 2. In-a rolli with the pass in said rolls, onefshearing mechanlsm being placed in front of and the second shearing mechanism T behind :said stand of rolls,"wl1erebypieces may be sew l X120 ,mill, the, combination with {a stand of rolls or the reduction of a rod-,o'f

tw o shearing mechanisms contiguous to said stand of rolls, and both in alinement Med from the rod to test the accuracy of its bottom of said trough being recessed to percross section both before and after 1ts pasmit the use of tongs for removing the sample 1'0 sage through said stand of rolls. of the rod severed by said shear.

3. In a rolling mill, the combination with Dated this sixth da of November, 1916. a stand of reducing rolls, of a shear dis- VICT RE. EDWARDS. posed in the ath of rods emerging from Witnesses: said stand, and a trough for conveying rods NELLIE WHALEN,

from the stand to the shear, the sides and PENELOPE COMBERBAGH. 

